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污水處理中COD水質(zhì)傳感器的應(yīng)用

2024/12/25 分類:應(yīng)用場(chǎng)景水環(huán)境監(jiān)測(cè) 913 0

COD檢測(cè)技術(shù)：

化學(xué)需氧量COD(Chemical 0xygen Demand)是以化學(xué)方法測(cè)量水樣中需被氧化的還原性物質(zhì)(通常為有機(jī)物)的氧當(dāng)量。這一指標(biāo)在河流污染監(jiān)測(cè)、工業(yè)廢水性質(zhì)研究以及廢水處理廠的運(yùn)行管理中具有重要意義，是快速評(píng)估有機(jī)物污染程度的關(guān)鍵參數(shù)。COD測(cè)量方法有化學(xué)法和物理法，化學(xué)檢測(cè)方法包含重鉻酸鹽回流法、分光光度法、快速消解法和快速消解分光光度法;物理檢測(cè)方法為紫外吸收法。

紫外吸收法不需要化學(xué)試劑，是基于水中有機(jī)物對(duì)紫外光及可見光特定波長(zhǎng)的選擇性吸收原理，利用水樣對(duì)單色光的吸收確定有機(jī)物物質(zhì)濃度，建立溶液對(duì)特定波長(zhǎng)吸光度和COD值之間的關(guān)系。COD值的大小主要取決于其中有機(jī)物的組成和濃度，而這些有機(jī)物在254nm處都有強(qiáng)烈的吸收。測(cè)定污水在波長(zhǎng)為254nm處的吸光度，通過(guò)建立的吸光度與COD濃度之間的關(guān)系換算出COD濃度值。

智易時(shí)代COD傳感器：?

圖片1.png

性能參數(shù)：

圖片2.png

為客戶解決實(shí)際問(wèn)題：

圖片3.png

應(yīng)用領(lǐng)域：

圖片4.png

標(biāo)簽:在線監(jiān)測(cè)水質(zhì)污染水質(zhì)監(jiān)測(cè)環(huán)境監(jiān)測(cè) 上一篇: 全光譜水質(zhì)監(jiān)測(cè)：保障水質(zhì)安全的新利器下一篇: 提升產(chǎn)業(yè)能效，構(gòu)建現(xiàn)代化噪聲監(jiān)測(cè)體系

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